3195121 has 2 divisors, whose sum is σ = 3195122. Its totient is φ = 3195120.

The previous prime is 3195109. The next prime is 3195131. The reversal of 3195121 is 1215913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2689600 + 505521 = 1640^2 + 711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3195121 is a prime.

It is a Chen prime.

3195121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3195092 and 3195101.

It is not a weakly prime, because it can be changed into another prime (3195131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1597560 + 1597561.

It is an arithmetic number, because the mean of its divisors is an integer number (1597561).

Almost surely, 2^3195121 is an apocalyptic number.

It is an amenable number.

3195121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3195121 is an equidigital number, since it uses as much as digits as its factorization.

3195121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 22.

The square root of 3195121 is about 1787.4901398329. The cubic root of 3195121 is about 147.2863285600.

The spelling of 3195121 in words is "three million, one hundred ninety-five thousand, one hundred twenty-one".